| 18 | x | 1 | = | 18> | 
| 18 | x | 2 | = | 36> | 
| 18 | x | 3 | = | 54> | 
| 18 | x | 4 | = | 72> | 
| 18 | x | 5 | = | 90> | 
| 18 | x | 6 | = | 108> | 
| 18 | x | 7 | = | 126> | 
| 18 | x | 8 | = | 144> | 
| 18 | x | 9 | = | 162> | 
| 18 | x | 10 | = | 180> | 
| 18 | x | 11 | = | 198> | 
| 18 | x | 12 | = | 216> | 
| 18 | x | 13 | = | 234> | 
| 18 | x | 14 | = | 252> | 
| 18 | x | 15 | = | 270> | 
| 18 | x | 16 | = | 288> | 
| 18 | x | 17 | = | 306> | 
| 18 | x | 18 | = | 324> | 
| 18 | x | 19 | = | 342> | 
| 18 | x | 20 | = | 360> |